Health verification method and device for DNS (Domain Name Server) service

The invention is suitable for the technical field of computers, and provides a DNS service health verification method and device, and the method comprises the steps: a client sends a DNS request to a DNS server, the DNS request comprises a health verification domain name, and the request type of the DNS request is a TXT type; the client receives a TXT type resource record returned by the DNS server according to the DNS request, the resource record comprises DNS server information, and the DNS server information comprises the health state of the DNS server; and the client performs health verification according to the DNS server information, and judges whether the DNS service of the DNS server is normal or abnormal. Therefore, health verification can be carried out on the DNS service essentially, and extra development is not needed. 本发明适用于计算机技术领域，提供了一种DNS服务的健康校验方法及其装置，该方法包括：所述客户端发送DNS请求至DNS服务器，所述DNS请求包括健康校验域名，所述DNS请求的请求类型为TXT类型；所述客户端接收所述DNS服务器根据所述DNS请求返回的TXT类型的资源记录，所述资源记录包括DNS服务器信息，所述DNS服务器信息包括所述DNS服务器的健康状态；所述客